<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<link rel="help" href="https://www.w3.org/TR/css-break-3/#monolithic">
<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div style="writing-mode:vertical-rl; inline-size:100px; block-size:100px; background:red;">
  <div style="columns:2; column-gap:0; column-fill:auto; block-size:50px;">
    <div style="block-size:50px; background:green;"></div>
    <div style="contain:size; block-size:0;">
      <div style="block-size:25px; background:green;"></div>
      <div style="block-size:25px; background:green;"></div>
    </div>
    <div style="contain:size; block-size:100px; background:green;"></div>
  </div>
</div>
